The invention relates to a method of adjusting a radio frequency signal produced by radio frequency circuitry in response to receipt of phase and amplitude control signals from digital baseband circuitry which operates to convert digital data signals into such phase and amplitude control signals. The...http://www.google.fr/patents/US20020058486?utm_source=gb-gplus-shareBrevet US20020058486 - Communications systems
Numéro de demande: 09/977,193 Numéro de publication: US 2002/0058486 A1 Date de dépôt: 16 oct. 2001 Brevet délivré: US7072420 ( Date de délivrance 4 juil. 2006)